Articles | Volume 18, issue 8
https://doi.org/10.5194/nhess-18-2111-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-18-2111-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development of fragility curves for road bridges exposed to volcanic lahars
Joaquín Dagá
CORRESPONDING AUTHOR
Department of Construction Engineering and Management, School of Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
Latin American Center of Economic and Social Policies UC (CLAPES UC), Santiago, Chile
Alondra Chamorro
Department of Construction Engineering and Management, School of Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
National Research Center for Integrated Natural Disaster Management (CIGIDEN), CONICYT/FONDAP/15110017, Santiago, Chile
Hernán de Solminihac
Department of Construction Engineering and Management, School of Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
Latin American Center of Economic and Social Policies UC (CLAPES UC), Santiago, Chile
Tomás Echaveguren
Civil Engineering Department, Faculty of Engineering, Universidad de Concepción, Concepción, Chile
National Research Center for Integrated Natural Disaster Management (CIGIDEN), CONICYT/FONDAP/15110017, Santiago, Chile
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Cited
13 citations as recorded by crossref.
- Fragility curves for road embankments exposed to adjacent debris flow N. Nieto et al. 10.1177/03091333221111444
- GIS-based volcanic hazards, vulnerability and risks assessment of the Guallatiri Volcano, Arica y Parinacota Region, Chile M. Reyes-Hardy et al. 10.1016/j.jsames.2021.103262
- Risk Management of Rural Road Networks Exposed to Natural Hazards: Integrating Social Vulnerability and Critical Infrastructure Access in Decision-Making M. Contreras et al. 10.3390/su17157101
- Lahar risk assessment from source identification to potential impact analysis: the case of Vulcano Island, Italy A. Gattuso et al. 10.1186/s13617-021-00107-6
- Multi-hazard impact assessment of regional rural transport networks for a large eruption of Taranaki Mounga, Aotearoa New Zealand J. Lamb et al. 10.1080/00288306.2025.2461522
- Developing empirical fragility functions for lava flow building damage E. Meredith et al. 10.1016/j.ijdrr.2025.105844
- Fragility of bridge decks exposed to hydraulic and driftwood actions A. Pucci et al. 10.1080/15732479.2023.2272725
- Integrating criticality concepts into road network disruption assessments for volcanic eruptions J. Hayes et al. 10.1186/s13617-022-00118-x
- Probabilistic estimation of the strength capacity of existing concrete bridges I. Răcănel & V. Urdăreanu 10.1016/j.istruc.2021.04.075
- Impact Forecasting to Support Emergency Management of Natural Hazards B. Merz et al. 10.1029/2020RG000704
- Development of fragility curves for road embankments exposed to perpendicular debris flows N. Nieto et al. 10.1080/19475705.2021.1935330
- Fragility of transport assets exposed to multiple hazards: State-of-the-art review toward infrastructural resilience S. Argyroudis et al. 10.1016/j.ress.2019.106567
- SIGeR-RV: A Web-Geographic Information System-Based System for Risk Management of Road Networks Exposed to Natural Hazards A. Chamorro et al. 10.1177/03611981231169532
13 citations as recorded by crossref.
- Fragility curves for road embankments exposed to adjacent debris flow N. Nieto et al. 10.1177/03091333221111444
- GIS-based volcanic hazards, vulnerability and risks assessment of the Guallatiri Volcano, Arica y Parinacota Region, Chile M. Reyes-Hardy et al. 10.1016/j.jsames.2021.103262
- Risk Management of Rural Road Networks Exposed to Natural Hazards: Integrating Social Vulnerability and Critical Infrastructure Access in Decision-Making M. Contreras et al. 10.3390/su17157101
- Lahar risk assessment from source identification to potential impact analysis: the case of Vulcano Island, Italy A. Gattuso et al. 10.1186/s13617-021-00107-6
- Multi-hazard impact assessment of regional rural transport networks for a large eruption of Taranaki Mounga, Aotearoa New Zealand J. Lamb et al. 10.1080/00288306.2025.2461522
- Developing empirical fragility functions for lava flow building damage E. Meredith et al. 10.1016/j.ijdrr.2025.105844
- Fragility of bridge decks exposed to hydraulic and driftwood actions A. Pucci et al. 10.1080/15732479.2023.2272725
- Integrating criticality concepts into road network disruption assessments for volcanic eruptions J. Hayes et al. 10.1186/s13617-022-00118-x
- Probabilistic estimation of the strength capacity of existing concrete bridges I. Răcănel & V. Urdăreanu 10.1016/j.istruc.2021.04.075
- Impact Forecasting to Support Emergency Management of Natural Hazards B. Merz et al. 10.1029/2020RG000704
- Development of fragility curves for road embankments exposed to perpendicular debris flows N. Nieto et al. 10.1080/19475705.2021.1935330
- Fragility of transport assets exposed to multiple hazards: State-of-the-art review toward infrastructural resilience S. Argyroudis et al. 10.1016/j.ress.2019.106567
- SIGeR-RV: A Web-Geographic Information System-Based System for Risk Management of Road Networks Exposed to Natural Hazards A. Chamorro et al. 10.1177/03611981231169532
Latest update: 30 Oct 2025
Short summary
One of the main volcanic processes affecting road bridges are lahars, which are flows of water and volcanic material running down the slopes of a volcano. In this paper, bridge failure models due to lahars are proposed and, based on these, fragility curves are developed. Fragility curves are parameterized by maximum likelihood estimation, assuming a cumulative log-normal distribution. Bridge failure models are empirically evaluated using data of 15 bridges that were affected by lahars.
One of the main volcanic processes affecting road bridges are lahars, which are flows of water...
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